Scoring package for Applied Physics for CSE Stream- 22 Scheme (2024-25)

MODULE-1

1. Derive an expression for energy density in terms of Einsteins A & B co-efficients at thermal equilibrium
conditions and prove B12=B21.
2. Illustrate the construction and working of semiconductor laser with a neat sketch with energy level
diagram.
3. Discuss the types of optical fibers based on modes of Propagation and Refractive Index Profile.
4. Define acceptance angle and numerical aperture and hence derive an expression for numerical aperture in
terms of refractive indices of core, cladding and surrounding.
5. Describe attenuation and explain the various fiber losses.
6. Discuss Point to Point communication using optical fibers.
7. Discuss the applications of LASER in bar-code scanner and LASER Cooling.
8. Define the following terms (i)Population Inversion (ii)Meta stable state (iii)Acceptance angle
(iv)Numerical aperture (v)Fractional index change.

MODULE-2
1. State and Explain Heisenberg’s Uncertainty principle and Principle of Complementarity. Show that
electron does not exist inside the nucleus using Heisenberg’s uncertainty principle.
2. Setup Schrodinger time independent wave equation in one dimension and extend it to three dimension.
3. Discuss the motion of a quantum particle in a one-dimensional infinite potential well of width ‘a’ and also
obtain the eigen functions and energy eigen states for first three excited states).
Keywords: Normalisation, eigen energy, eigen value, potential well)
4. What is wave function? Explain the physical significance of the Wave Function.
5. Discuss de-Broglie Hypothesis.
6. Define wave packet, phase velocity and group velocity. Derive an expression for de-Broglie wavelength
of an electron.
7. Derive an expression for de-Broglie wavelength by analogy and hence discuss the significance of de-
Broglie waves.

MODULE-3
1. Discuss the CNOT gate and its operation on four different input states.
2. State the Pauli matrices. Discuss the operations of Pauli matrices on the states |0⟩ and |1⟩.
3. Describe the working of controlled Z gate by mentioning the matrix representation and truth table.
4. Define single and two qubits. Explain the representation of qubit using Bloch Sphere.
5. Elucidate the differences between classical and quantum computing.
6. Discuss the working of phase (S) gate mentioning its matrix representation and truth table.
7. Explain Orthogonality and Orthonormality with an example for each.
8. Explain Single qubit gate and multiple qubit gate with an example for each.
9. Define a bit and qbit and explain the properties of qubit.
10. Explain the working of T-gate mentioning its matrix representation and truth table.
11. Show that phase gate/S-gate can be formed by connecting two T-gates in series.
 MODULE-4
1. Define Fermi Factor and Discuss the variation of Fermi factor with temperature and energy.
Or
Define Fermi energy level. Discuss various energy states by the electrons at T=0K and T>0K on
the basis of fermi factor.
2. Describe Meissner’s Effect and hence classify superconductors into Soft and Hard superconductors (i.e.
type 1 and type 2) using M-H graphs.
3. Enumerate the assumptions of Quantum free Electron Theory of Metals and mention failures of classical
free electron theory.
4. Define Critical Temperature and critical magnetic field. Explain the phenomenon of superconductivity
and qualitatively discuss the BCS theory of superconductivity for negligible resistance of metal at
temperatures close to absolute zero.
5. Explain DC and AC Josephson effects and mention the applications of superconductivity in quantum
computing.
6. Give the qualitative explanation of RF Squid with the help of a neat sketch.
7. Discuss the effect of temperature and impurity on electrical resistivity of conductors and hence explain
for superconductors.

MODULE-5
1. Elucidate the importance of [size & scale] and [weight and strength] in animations.
2. Describe Jumping and parts of jump.
3. Discuss the salient features of Normal distribution using bell curves.
4. Mention the general pattern of monte Carlo method and hence determine the value of π.
5. Discuss timing in Linear motion, Uniform motion, slow in and slow out.
6. Illustrate the odd rule and odd rule multipliers with a suitable example.
7. Discuss modelling the probability for proton decay.
8. Distinguish between descriptive and inferential statistics.
9. Explain Poisson distribution and probability mass function with examples.

NOTE: Yellow color highlighted and red color font questions are the most important.

Prepared by ASST. PROF. SYED DAWOOD,